Putty removing knife



June 22, 1943. H. HmscHHoRN- 2,322,359

PUTFTY REMOVlNG KNIFE v Filed Sept. 12, 1942 Patented June 22, 1943UNITED STATES PATENT oFElCE,

PUTTY REMOVING KNIFE Herman Hirschhorn, New Rochelle, N. Y.

Applicatimim September 12, 1942, Serial No. 458,151

1 Claim.

The invention relates to improvements in putty removing knives in whicha sharp edged knife is used to remove hard putty; and the objects of theimprovement are, rst, to provide a sharp edged knife that will greatlyreduce the eiort of removing hard putty; second, to provide a sharpedged knife that must be held in such a position that Worker can notinjure knuckles.

The invention is illustrated in the accompanying drawing, in which theentire knife is shown in a side view.

The handle I and blade 2 constitute the entire knife.

. Blade 2 has one longitudinal edge DF, in line with the center of thehandle and a second 1ongitudinal edge CE, parallel to the rst and offsetto one side of the handle, the two longitudinal edges are not sharpened.

The end edge BD is sharpened, and is approximately on a 135 degree angleto longitudinal edge DF.

Edge BC is not sharpened; edge BC is on a 165 degree angle to secondlongitudinal edge CE, and on a 60 degree angle to sharp edge BD, edge BCmeets secondv longitudinal edge CE approximately at point C.

I am aware that prior to my invention putty removing knives have beenmade with tapered longitudinal edges and a sharp edge perpendicular tocenter line of blade. I therefore do not claim such a combinationbroadly; but I claim:

A putty removing knife comprising an elongated blade and handle in whichsaid blade has one longitudinal edge in line With the center of thehandle and a second longitudinal edge parallel to said rst longitudinaledge and a sharp terminal edge making an obtuse angle with said rst edgeand ending in a 60 degree point.

i HERMAN HIRSCHHORN.

